Car dumper



April 14, 192s. 1,533,667

' G. N. SIMPSON CAR BUMPER Filedfllarh l. 1924 /0 mkg. 0n z/ /Z .Z0-a

20 L// l a Z/ i i J9 Z0 l( M n l j f Patented Apr. 14, 1925i.

PATENT GEORGE.N. SIMPSON, OF CHICAGO, ILLINOIS. l

Application filed March 1?', 1924. Serial No. 698,898. v

To all whom t may concern.'

Be it known that GEORGE N. SIMPSON,

a citizen of thel United States, residing at Chicago, in the county ofCook and State of Illinois, has invented a new and useful Improvement'in Car Dumpers, of which `the following is a specification. y

This invention relates to improvements'in car dumpers and moreespecially to a car dumper comprising a rotatable cage mount"l ed onsupportingwheels or trunnions.

p In cardumpersof this kind, the cage` is frequently mounted on a slantor incline in order to assist in feeding the cars thereinto andremoving*themtherefrom. When the cage is arranged on aninclineditliculty has been encountered in rotatably supportv ing the same andpreventing the cage from slipping" downwardly. Formerly thrust wheelswere installed to prevent the downward creeping of the cage, but thesewere objectionable due to the fact that they usually had to be mountedon vertical shafts, and suitable fiat surfaces had to be provided on thesides of the ring rails of the cage for them to work against. It is oneof the objects of my invention to sup port the cage on a slant orinclinel so that there will be little, if any, tendency of the cage tomove longitudinally downwardly. By the use of the invention it ispossible, therefore, to construct and operate heavy cages on slopes orinclines 'without the necessity of providing thrust wheels or reinforcements on the cage construction.

My improved car duinpcr can be `easily and cheaply made and is strongandrugged in construction. Other features and advantages of my inventionwill appear more fully as I proceed with my speciIication.`

In that form of device embodying the features of my invention shown inthe accompanying drawings, Fig. 1 is a topvplan view of a car dumper,and Fig. 2 is a view of the same in side elevation.

As shown in the drawings, the car dump@ er comprises primarily acylindrical cage formed of the two end rings 10, 10L which are herevshown as formed of heavy rails. 'lhe` ring rails 10, .10 are suitablyjoined together and braced by appropriate braces, cross-bars or struts,such as 11 and 12 in order to form a rigid cylindrical cage. At thebottom of the cage are mounted two rails 18, 13:L together forming atrack section for supporting the car, or cars in the cage.

i 1li indicates the track leading to the cage and 15l the trackleadingtherefrom. yIn car dumpers ofthis general type, the car or carsto be dumped are fed into the cage from the track either way, usuallyentering by the track 15 and leaving the same way. l/Vhen the p cage,approach, and receiving tracks are arranged as shown, ordinarily gravityis suflicient to move the Cars dowii the incline. The car or cars in thecage are dumped by rotation of the cage which may be complete,orpartialwith ai ret-urn rotation. ing thecage and for holding the car'or cars in the cage on thetrack 13 during such rotation are provided.Such mcans'are old l in the art, form no part of the present invention,and consequently,A are not shown y oFFlczE.

cated the two wheels at the lower end of the cage by the referencenumeral 2O` and those at the upper end of the cage by the referencenumeral 20a. Likewise the reference numerals on the parts associatedwith the supporting wheels at the upper end of the cage bear thecharacteristic a and similar parts at the lower end of the cage havesimilar reference numerals but without the characteristic a. Each of thewheels 20, 2()a is provided with a peripheral groove 21, 21a adapted toreceive'the ring ails 10, 10a. Each of the wheels 20, 20 is providedwith projecting axles or trun- ,nions 22, 22l which are suitablysupported on. bearing blocks 23, 23 as shown.

It is to be particularly noted that the axesy o1 the sul'iiiortingwheels 20, 20'*y all lie in horizontal planes. The. axes of the pair ofwheels 20 lie in the same plane, and the axes of the pair of wheels 2Oalie in a higher plane depending upon the inclination of the cage. Thebottom of the grooves 21, 21a are fiat or cylindrical. And it is onthese surfaces that the lring rails 10, 10EL rest.` Since the axes ofthe supporting wheels 20, 20a are on horizontal planes, it will be seenthat the supporting surfaces 20, 2la are also level thus permitting thering rails to Test thereon with very little, if any, ltendency to creepdownhill.

In mounting the wheels 20, 201L level, there is some tendencyof eachring rail to creep across the supporting surface 21, 21"'. This lli)tendency is vcounteracted by :twisting the supporting wheels slightly sothat the axes of each pair 'of supporting wheels do not lie parallel toeach other. In lother words, the axes of each pair of supporting wheelsare twisted so that these axes if produced, converge in the direction inwhich the cage slopes downwardly.

lllhile I have'shown and described certain embodiments of my invention,it is to be understood that it isfcapable of many modifica-tions.Changes, therefore, in the construction and arrangement` may` be madewithout departing from ythe spirit and .scope of the invention asdisclosed, in the appended claims, in which it is my intention to lelaiin all novelty inherent in my invent-ion as broadly as possi-ble inview of the prior art; v

What I claim as new, and desire to secure by Letters Patent is: f

l. A device of the `character described @coinprising,` an inclinedrotatable cage'ha-vlinga ring rail at each end, apa-ir of supportingwheels'carryingv each ring rail, the axes of each pair of supportingwheels lying in the same substantially horizontal planeand converging inthe direction towardwhich lthe cage is .inclined downwardly.

2. A device oft the character described comprising, an inclinedrotatable cage hav,-

ing a ring rail at each end, :a pair of supporting lwheels carrying eachring rail, the surface of each supporting Wheel in contact with the ringrailfbeing substantially cylindrical, the axes of each pair ofsupporting` wheels lying in the. same substantially horizontal plane,and converging in the direction ytoward which the cage is inclineddownwardly. v

3. A device of the character described comprising, an inclined-rotatablecage having a ring rail at each end, a pair of supporting Wheelscarrying each 'ring rail, the axes of each pairof supporting wheelsbeing substantially horizontal, and converging in the direction towardwhich the cage is inclined downwardly.

4. A device .of the character described comprising, an inclinedrotatable cage hav- GEORGE N.. s-IMPsoiv: [Le]

